Features and Specifications

SDR Card

_images/LimeNET_SDR_Card_1.png

Software Defined Radio (SDR) with integrated front end – LimeNET is built on LimeSDR software-defined radio technology to deliver an app-enabled network solution covering any standard from IoT to 5G. Use of Lime’s SDR platform provides the most flexible radio hardware solution that enables numerous applications from IoT to 5G and small-cell configurations and services. It could be used to create on-demand network solutions where services could be easily offered for any Telco centric services. LimeNET comes pre-equipped with a flexible front-end module that provides filtering and amplification.

Table 1: LimeSDR Features and Specifications.

RF Chipset

3x Lime Microsystems LMS7002M FPRF

RF LO frequency1

30MHz – 3.8GHz

RF channels

2x2 MIMO for 5G, 2x2 MIMO for 4G, 2x RX for spectrum monitoring and 2x TX for calibrations

RF bandwidth

4G: up to 40MHz

5G: up to 100MHz

Default

supported bands2

4G: B1, B3, B7 or B28

5G: n48, n783

FPGA family

Xilinx Artix7, XC7A200T

PCIe generation

Gen 2, x4, 2000MB/s

Clock oscillator

VCOCXO, VCTCXO, CDCM6208

Location services

Galileo, Glonass, GPS, Beidu

Note

  • 1Continous coverage.

  • 2Other bands possible by request.

  • 3Subset of 3.4-3.6GHz supported by default.

x86 Subsystem

Table 2: Typical LimeNET x86 System Features and Specifications.

CPU1,2

AMD, Ryzen 7 5700G, 8C/16T or Ryzen 9 5900X, 12C/24T, 4.60GHz

Motherboard1

GIGABYTE, X570 AORUS PRO, AT

RAM2

16GB, DDR4, 3600MHz (up to 128GB)

Storage1,2

500GB SATA SSD

Cooling1

Liquid/air combination

x86 subsystem case

4U rackmount server chassis

LimeNET system case

Indoor, IP20, Rack type, 7U size, 60x45x40cm (WxLxH). Houses all hardware parts except Antenna.

Note

  • 1Vendor may vary.

  • 2Specification may be customised.

RF Front-End

Table 3: Typical LimeNET RF Front-end Features and Specifications.

Front-end module1,2,3

Output power: <33dBm, Noise Figure: <2dBm, ACPR: >45dB4

Front-end module supply1,3

>100W AC-DC converter

Band filter/duplexer1,2,5

Cavity type, SMA (female) output

Antenna1,2,6

MIMO, 5G ready, Frequency bands: 698-960MHz; 1710-2700MHz;

3200-3800MHz, up to 6dBi, IP68, SMA (male), feed power handling up to 10W

User test equipment1

5G ready, supports 5G SA mode

SIM card1,7

2FF-4FF, Ready-to-use with LimeNET devices

Note

  • 1Vendor may vary.

  • 2Specific band or channel restrictions may vary depending on specific requirements (e.g. N78, N48, N41 etc.)

  • 3Power can be changed depending on specific requirements.

  • 4At maximum output power, LTE test waveform, 20MHz, PAPR 10dB.

  • 5Output connector can be changed depending on specific requirements.

  • 6Antenna parameters be changed depending on specific requirements.

  • 7Pre-programmed SIM cards can be supplied depending on specific requirements.

4G/5G Backhaul

Table 4: Typical LimeNET RF Front-end Features and Specifications.

Module1

4G: EM7690 Cat-20 LTE-Advanced Pro Module

5G: EM9191 5G NR Sub-6 GHz Module

Data rate

4G: Peak Download Rate 2Gb/s; Peak Upload Rate 211Mb/s

5G: Peak Download Rate 4.5Gb/s; Peak Upload Rate 660Mb/s

Supported bands

4G: B1, B2, B3, B4, B5, B7, B8, B12, B13, B14, B18, B19, B20, B21, B25, B26,

B28, B29, B30, B32, B34, B38, B39, B40, B41, B42, B43, B46, B48, B66, B71

5G: n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n48, n66, n71, n77,

n78, n79

Antenna1,2,3

MIMO, 5G ready, Frequency bands: 698-960MHz; 1710-2700MHz;

3200-3800MHz, up to 6dBi, IP68, SMA (male), feed power handling up to 10W

Note

  • 1Vendor may vary.

  • 2Specific band or channel restrictions may vary depending on specific requirements (e.g. N78, N48, N41 etc.)

  • 3Antenna parameters can be changed to meet specific requirements.

Software

Table 5: Typical LimeNET Software Features and Specifications.

4G/5G stack

Amarisoft: eNB/gNB, EPC/5GC functionality (pre-installed)

Front-end module control

Lime Microsystems: gain, power control; automatic output power level limitation;

temperature and forward, reverse power information; SWR, over temperature, over

power warnings (pre-installed)

Operating system1

Ubuntu LTS (pre-installed)

Note

  • 1Ubuntu is required for LimeNET app store support.